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一种基于多秘密共享的H.264视频无失真漂移鲁棒隐写方法 被引量:2

Robust steganography method for H.264 without frame distortion drift based on multi-secret sharing
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摘要 提出了一种基于多秘密共享的H.264视频无漂移鲁棒隐写方法。该方法首先利用(t,n)门限多秘密共享技术将需要嵌入的p个秘密信息利用矩阵方程分发成n个子秘密;然后利用H.264预测模式选择可嵌入的4×4亮度块,通过双系数选择嵌入块内DCT系数对;最后将分发好的子秘密按调制方法嵌入到视频的各个备选块的DCT系数对中。提取时,只需获取视频中部分t个子秘密即可恢复秘密信息。实验结果表明,该方法除能有效地恢复帧丢失、帧错等引起的秘密信息,还能有效控制帧内失真漂移,有较好的视觉隐蔽性,视觉效果良好。 This paper proposed a robust steganography method for H. 264 without intra-frame distortion drift by using secret sharing. The p embedded secret data was firstly distributed into n sub-secrets with specific polynomial by using( t, n) -threshold multi-secret sharing,then chose the block with prediction mode and chose DCT with paired-coefficients. Then it embeded the embedded data into the paired-coefficients of the 4 × 4 discrete cosine transform (DCT) block of the selected block. It could restore the hidden data by using the t sub-secrets of the video frames. The experiment results show that the method has the high frame loss and frame error robustness. In addition, the method can avoid intra-frame distortion drift and has better visual concealment.
出处 《计算机应用研究》 CSCD 北大核心 2015年第8期2433-2436,共4页 Application Research of Computers
基金 国家自然科学基金资助项目(U1204703 61272407 U1304614) 河南省重点科技攻关项目(122102310004) 郑州市创新型科技人才队伍建设工程项目(10LJRC190 131PCXTD597) 河南省教育厅科学技术研究重点项目(14A630057 13A413355 13A790352 ITE12001)
关键词 H.264 多秘密共享 鲁棒性 帧内失真漂移 隐写 H. 264 multi-secret sharing robust intra-frame distortion drift steganograph
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参考文献9

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